We're dividing 157920 by 18 
Let's see how many times 18 fits into 157920.

Let's proceed to step 1:
When dividing 1 by 18, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 18

Step 2:
If we divide 15 by 18, we get 0 and a remainder of 15.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 15 to get 15.
Take the next digit (7) from the dividend and append it to 15, then repeat: 157 / 18

Going ahead to step 3:
18 goes into 157 8 times with a remainder of 13.
Use 8 as the next digit of our solution. 
Result so far: 8.0
The remainder is 13 after subtracting 144 from 157.
Fetch the next digit (9) from the dividend, attach it to 13 and continue: 139 / 18

Moving on to step 4:
When dividing 139 by 18, we get 7 with a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 87.0
Subtract 126 from 139 to get 13.
Take the next digit (2) from the dividend and append it to 13, then repeat: 132 / 18

Advancing to step 5:
132 divided by 18 is 7 with a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 877.0
If we subtract 126 from 132, we get 6.
Take the next digit (0) from the dividend and append it to 6, then repeat: 60 / 18

Going ahead to step 6:
If we divide 60 by 18, we get 3 and a remainder of 6.
Record the quotient 3 as the next digit in the result. 
Result so far: 8773.0
Subtract 54 from 60 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 7:
18 can be fit into 60 3 times, resulting in a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 8773.3
If we take 54 away from 60, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 8:
If we divide 60 by 18, we get 3 and a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 8773.33
Deduct 54 from 60 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Our division results in 8773.33 with a remaining 0.006.